Most critics find Marathon Man an effective thriller, with praise concentrated on individual sequences and performances rather than the coherence of its plot. The favourable reviews credit Schlesinger’s direction with sustaining tension through intense situations, and repeatedly single out the dental sequence for its disturbing force. Olivier draws particular praise for his chilling presence, while Hoffman’s committed lead performance helps make the tangled intrigue involving Nazis, agents and diamonds compelling for several reviewers.
The reservations concern the slow build-up, fragmented construction and loose ends, weaknesses that even some admirers acknowledge. The spread is wide: where favourable reviews find enough suspense to overlook the plotting, Variety finds the lengthy set-up confusing and disengaging, with too little momentum in either story or performances. The New Yorker dissents more sharply, finding little suspense in the crosscutting and judging Hoffman miscast, making the acting itself a point of disagreement.
